1995 Johnson/Evinrude Outboards 50 thru 70 3-cylinder Service Manual, Page 178Get this manual

1995 Johnson/Evinrude Outboards 50 thru 70 3-cylinder Service Manual, Page 178

Cleaning and Inspection 1Clean all parts with parts cleaning solvent and dry with compressed airAll nut and screw threads
and bottom mating surfaces and remove all sealer and corrosiona surface plateUsing dial indicator, check flatness by measuring
the run-out on the top edge of the housing The maximum allowable run-out is 0.009 in(0,228 mm)If you do not have access to
dial indicator and surface plate, seek the services of machine shopDO NOT attempt to straighten distorted housing; replace
itA distorted exhaust housing will cause the upper driveshaft splines to wear excessively and will damage the crankshaft